Black Rhodium Tank Plating Solution

Price range: £147.29 through £501.00 + VAT

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Black Rhodium Tank Plating Solution plates a layer of dark rhodium. Please note that this shade of rhodium is not jet black.

We recommend a rub with MPU fine after plating to enhance the qualities of the dark coating.

Rhodium concentration: 1.4 grams per litre.

Why choose Spa Plating?

We  save you time and money because…

  • Our plating solutions have been fully tested for optimum efficiency and ease of use.
  • We have developed unique equipment such as our power source, the MultiPlater and processes that get the best out of every product we sell
  • Our Plating Calculators take the guess work out of achieving top quality plating results for the minimum time and cost
  • We provide free online technical support via our YouTube channel and on each product page under the Blue Tabbed Panel.

HS Code: 3824 99 70

 

The ring on the right has been plated with our black rhodium tank plating solution and been  further enhanced by special treatment after plating.

Our black rhodium tank plating solution is an excellent replacement for other less robust blackening agents.

These silver earrings have been selectively black rhodium and yellow gold plated and then the black rhodium layer has been gently rubbed back with a glass brush, to bring out the textured surface. Unlike other blacking agents, the black rhodium layer won’t rub off so quickly.


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Operating Parameters

Rhodium concentration 1.4 g/l
Plating Factor 0.02 A/cm2
Plating rate (Plating Factor: 0.02 A/cm2, 20 °C) 0.05 µm/min
Recommended plating thickness 0.2 micron (4 minutes at 0.02A/cm2
pH ~ 2
Temperature range 18 – 25 °C
Anode Platinum rod electrodes
Rhodium content in plate 99.1
Blackness L* (CIE Lab measure) Below 50 – 55 (See notes)
Agitation No agitation
Hardness 200 – 250 Hv (quite soft)
Stress (tensile) Very high (brittle)
Special storage requirements None
Shelf life Up to 1 year
Health and Safety classification Not classified
Special considerations None
Transport (UN number) Not classified

 

Notes:

  • Plating rate increases with temperature.
  • Coating begins to haze and move to the grey scale over 0.2 micron.
  • Blacker coatings are obtained at lower temperatures.
  • Blackness can be controlled using Black Rhodium Tank Blackening Agent.
  • Deep black coatings (L* < 35) are possible by anodic treatment after plating in Cleaner
    at 3 volts for 1 minute.
    This treatment also vastly improves the layer’s wear and tarnish resistance.
    A protective layer of 0.5 micron of gold should be applied to the object before black
    rhodium plating when performing anodic treatment.
  • Cover the solution when not in use and if not using for a long period of time, store in a closed
    container.

Some items are regulated for transport and can only be delivered to destinations in the UK and countries within the EU. Alternative or substitute products are detailed in the ‘Description’ tab of this tabbed panel or under Related Items below this tabbed panel.
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Please click on the link below to download the SDS for this product:

https://goldn.co.uk/msds/black_rhodium_tank_plating_solution.pdf